http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1230208-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b828305495e1cdb63947a3a18aa633d1 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00 |
| filingDate | 2000-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a39acff029111df2cca544cda4be43b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_06eab14bfb7003153120d9138fea2d39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f7c422cb2c25e8a71e24dfd9c6806d1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42ae75293c4bcdea9cf065f770297fc4 |
| publicationDate | 2006-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1230208-B1 |
| titleOfInvention | Manufacturing method for 4-nitrosoaniline from urea and nitrobenzene |
| abstract | Disclosed herein is a method for preparing 4-nitrosoaniline, comprising reacting urea and nitrobenzene in a polar organic solvent in the presence of a base at a temperature of room temperature to 150 °C. The method uses a relatively cheap urea and nitrobenzene as the raw materials, and also a relatively cheap base, thereby decreasing the manufacturing cost. Urea used as an amine donor is excellent in a reactivity to nitrobenzene, and a reaction intermediate is unstable as compared with 4-(4-nitrophenyl)benzamide to easily decompose into 4-nitroaniline and 4-nitrosoaniline. This allows a reaction time and a process time to be shortened. Moreover, the method is advantageous in that waste hazardous to the environment is not produced as a byproduct. |
| priorityDate | 1999-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 133.